.box{
    width: 300px;
    height: 300px;
    margin: auto;
    box-shadow: black 2px 2px 2px 2px;
}
.head{
    padding-top: 20px;
}
.head>h2{
    text-align: center;
}
.word{
    margin-top: 20px;
}
.enter{
    text-align: center;
    padding-top: 20px;
}